{"id":"CVE-2020-15999","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-15999","generatedAt":"2026-10-27T23:43:53.120Z","title":"Google Chrome FreeType Heap Buffer Overflow Vulnerability","description":"Heap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.","published":"2020-11-03T03:15:15.000Z","lastModified":"2026-06-17T02:57:36.000Z","status":"Analyzed","sourceIdentifier":"chrome-cve-admin@google.com","cvss":{"version":"3.1","score":9.6,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"},"cwe":["CWE-787","CWE-120"],"affected":["google/chrome","freetype/freetype","debian/debian linux","fedoraproject/fedora","opensuse/backports sle","netapp/ontap select deploy administration utility"],"epss":{"score":0.63894,"percentile":0.99217,"date":"2026-10-26","history":[{"date":"2026-10-03","score":0.63894,"percentile":0.99202}]},"kev":{"listed":true,"dateAdded":"2021-11-03","dueDate":"2021-11-17","knownRansomwareCampaignUse":"Unknown","notes":"Apply updates per vendor instructions.\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-15999"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 17 November 2021). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-10-03T00:00:00.000Z","detail":{"to":0.63894,"from":0.44303,"percentile":0.99202},"summary":"EPSS moved from 44.3% to 63.9% probability of exploitation in the next thirty days."}],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.html","tags":["Broken Link","Mailing List","Third Party Advisory"],"source":"chrome-cve-admin@google.com"},{"url":"http://seclists.org/fulldisclosure/2020/Nov/33","tags":["Mailing List","Not Applicable","Third Party Advisory"],"source":"chrome-cve-admin@google.com"},{"url":"https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop_20.html","tags":["Third Party Advisory"],"source":"chrome-cve-admin@google.com"},{"url":"https://crbug.com/1139963","tags":["Exploit","Issue Tracking","Third Party Advisory"],"source":"chrome-cve-admin@google.com"},{"url":"https://googleprojectzero.blogspot.com/p/rca-cve-2020-15999.html","tags":["Exploit","Third Party Advisory"],"source":"chrome-cve-admin@google.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J3QVIGAAJ4D62YEJAJJWMCCBCOQ6TVL7/","tags":["Release Notes"],"source":"chrome-cve-admin@google.com"},{"url":"https://security.gentoo.org/glsa/202011-12","tags":["Third Party Advisory"],"source":"chrome-cve-admin@google.com"},{"url":"https://security.gentoo.org/glsa/202012-04","tags":["Third Party Advisory"],"source":"chrome-cve-admin@google.com"},{"url":"https://security.gentoo.org/glsa/202401-19","tags":["Third Party Advisory"],"source":"chrome-cve-admin@google.com"},{"url":"https://www.debian.org/security/2021/dsa-4824","tags":["Mailing List","Third Party Advisory"],"source":"chrome-cve-admin@google.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.html","tags":["Broken Link","Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2020/Nov/33","tags":["Mailing List","Not Applicable","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop_20.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://crbug.com/1139963","tags":["Exploit","Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://googleprojectzero.blogspot.com/p/rca-cve-2020-15999.html","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J3QVIGAAJ4D62YEJAJJWMCCBCOQ6TVL7/","tags":["Release Notes"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202011-12","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202012-04","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202401-19","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20240812-0001/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2021/dsa-4824","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-15999","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-15999","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}